Weed of the Month: Macroptilium atropurpureum (Siratro)

Now this weed has a similar look to a ‘Sweet Pea,’ but unfortunately it is anything but sweet. In fact ‘wicked’ is probably a better description, especially given the deep dark red-purplish tones in the petals. Maybe it would be right at home in the garden of some wicked witch in a fairy tale, but it is anything but welcome in our native environment.

Today Brooke introduces us to ‘Siratro’ a perennial creeping, climbing weed which is ranked as one of the Top 50 priority environmental weeds in Queensland, but it is also a major concern Australia-wide.

To show just how challenging Macroptilium atropurpureum is, just check out the root system on one here that our team recently extracted from a dune area. As you can see Siratro anchors itself very well, making it very challenging to remove, but even more difficult for native vegetation to compete with.

Roots of Macroptilium atropurpureum (Siratro)

Image Credits: 

In the meantime, be sure to check out all of Brooke’s other Featured Weeds via the links and slideshow below:

Impatiens Spp.
(Busy Lizzie, Balsam)
Ardisia crenata
(Christmas Berry)
Cinnamomum camphora
(Camphor Laurel)
Thunbergia plata (Black-eyed Susan)Dolichandra ungues-cacti
(Cats Claw Creeper)
Lantana camara
(Lantana)
Bryophyllum delangoense
(Mother of Millions)
Asparagus aethiopicus ‘Spengeri’
(Ground Asparagus Fern)
Asparagus aethiopicus
(Climbing Asparagus Fern)
Sphagneticola trilobata
(Singapore Daisy)
Salvina molesta
(Salvinia)
Anredera cordifoli
(Madeira Vine)
Araujia sericifera
(Moth Vine)
Aristolochia elegans
(Dutchman’s Pipe)
Senna pendula var glabrata
(Easter Cassia)
Ipomoea circa
(Coastal Morning Glory)
Vigna luteola
(Dalrymple Vigna)
Bacharis halimifolia
(Groundsel Bush)
Solanum chrysotrichum
(Giant Devil’s Fig)
Passiflora suberosa (Corky Passionfruit Vine)

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